Pipe wrappino machine



July 14, 1931. H. B. LYNCH 1,814,320

PIPE WRAPPING MACHINE Filed June 12, 1928 5 Sheets-Sheet l fifqaer 5. LYNCH,

July 14, 1931. H. B. LYNCH PIPE WRAPPING MACHINE 7 5 Sheets-Sheet 2 Filed June'l2, 1928 Filed June 12, 1928 5 Sheets-Sheet 5 July 14, 1931. H. B. LYNCH ,320

PIPE WRAPPING MACHINE Filed June 12, 1928 5 Shee ts-Sheet 4 HAEEYB. Ar/vcH,

July 14, 1931. H. B. LYNCH PIPE WRAPPING MACHINE Filed June 12, 1928 5 Sheets-Sheet 5 Patented July 14, 19 31 UNITED STA TES IPATE HARRY 1B. LYNCH, O11 MOKEESPORT, PENNSYLVANIA rrrn wmr'me MACHINE Application filed June 12, 1928. Serial No. 284,681.

This invention relates to pipe wrapping machines and, while not limited thereto, relates more particularly to pipe wrapping machines for wrapping an impregnated fabric covering on the pipe, and hasfo-r one of its objects the provision of an improved machine in which the'pipe is r tated and-fed forwardly through the machi e by the same feed rollers.

Another object is to provide a machine in which the ratio between the speed of rotation and the speed of longitudinal movement of the pipe may be readily adjusted to determine the spiral characterizing the strip of fabric as it is wrapped upon the pipe.

A still further object is to providea novel supporting and guide means for the fabric being wrapped on the pipe whereby the angularity of the line of feed of the fabric a relative to the pipe may be readily adjusted.

In the drawings Figure 1 is a plan view of a machine constructed in accordance with this invention.

Figure 2 is a side elevation thereof.

Figure 3 is a sectional side elevation through the machine.

Figure 4 is a front elevation.

Figure 5 'is a sectional elevation through the lmpregnating tank and showing the 30 lower portion of the pipe handling machine in elevation.

Referring more particularly to the drawings, the letter A designates the pipe handling apparatus and the letter B designates the fabric impregnating tank as a whole.

The pipe handling apparatus A comprises an upright or vertically disposed housing 2 supported on a base portion 3. A motor 4 is mounted on the base 3 and has its armature shaft 5 coupled to the worm shaft 6 of a worm and worm-wheel gear reducing unit The worm-wheel shaft 8, of the unit 7, is coupled to a horizontal drive-shaft?) which is journaled in the housing 2 and is provided at its forward end with a bevel gear 10 which is meshedwith bevel gears 12 and 13 secured on upper and lower Vertical shafts 14 and 15, respectively, which are journaled in the housing 2.

A lower pipe feeding roller supporting are mounted on the rods 33 below the lower shelf-like housing 16 is rigidly bolted or otherwise secured to the forward vertical face of the housing 2 adjacent the forward end thereof. A vertical roller spindle 17 is journaled in a vertically disposed opening 18 in the housing 16 and is adapted to be locked in position by washers 19 and a nut 19 threaded on the lower end of the spindle. The upper end of the spindle. 17- terminates in spaced bearing lugs 20 in which is journaled a horizontal roller-shaft 21. A knurled feed-roller 22 is keyed to the shaft 21 between the bearing lugs 20, and one end of the shaft 21 projects materially beyond one of the bearing lugs-20 and has a bevel pinion 23 secured thereon.

A bevel ring gear 24 having a tubular stem portion 25 is journaled on a bearing sleeve 26 mounted around the spindle 17 The ring gear 24 is meshed with the pinion 23 on the shaft 21. A gear 27 is keyed or otherwise secured to the tubular stem 25 of the gear. 24 and is meshed with a pinion 28 on the lower w drive-shaft 15.

An upper. pipe feeding roller supported housing 29 is slidably mounted for vertical movement in guideways 30 on the housing 2 and is suspended from the piston rod 31 of a fluid pressure cylinder 32 secured on the housing 2. A pair of screw threaded guide-rods 33 are secured at their lower ends to the roller supporting housing 29, and extend upwardly through openings in the flanges of the ends 34 and 35 of the cylinder. A pair of nuts 36 end 34 of the cylinder, and a second pair of nuts 37 are mounted on the rods 33 above the upper end 35 of the cylinder to limit the movement of the housing 29. Coil springs 38 are mounted on the rods 33 between the nuts 37 and the upper end 35 of the cylinder to cushion the downward movement of thellousing 29 and its feed-roller.

A vertical feed-roller spindle 39 is journaledin a vertically disposed opening in the housing 29- and is adapted to belocked in position by washers 40 and a nut 41 threaded on the upper end of the spindle. The lower end roller-shaft 43' A knurled upper feed-roller 44 is keyed to the shaft 43 between the bearing lugs 42, and one end of the shaft 43 projects materially beyond one of the bearing lugs 42 and has a bevel pinion 44 secured thereon. a

A bevel ring gear 45 having a tubular stem portion 46 is journaled on a bearing sleeve 47 mounted around the spindle 39. 'The ring The feed-rollers 22 and 44 are shown inthe drawing as having their axes of rotation parallel with the axis of the pipe-for the purpose of clearness. However, it will be understood that in practice such rollers will be turned so that their axes will be on an angle to the axis of the pipe in the manner of the rolls of a cross-rolling machine, so that the pipe will be rotated and simultaneously fed forwardly through the machine.

The feed-rollers 22 and 44 will be turned on angles of equal degree, and the pitch of the spiral described by a given point on the surface of the pipe will depend on the angularity of the adjustment of the rollers.

The upper ends of the rods 33 are connected together by a cross-head 50 to which one end of a cable 51 is connected. The cable 51 is trained upwardly over a sheave 52 journalcd on a mast 53, and has its other end connected to a counter-weight 54 which is adapted to substantially counter-balance the weight of the housing 29 and its associated parts.

A pipe guide chuck 55 is secured on the enteringside of the housing 2 and is provided with pipe guiding posts 56 and 57 which are adjustable relative to the pipe and are adapted to engage the upper portion of the pipe at the opposite sides of the longitudinal centerof thepipe. A pair of adjustable side guide members 56* and 57* also are providedand are adapted to engage the opposite sides of the pipe. The guides. 56, 57, 56 and 57 are adapted to maintain the pipe in position between the feed-rollers 22 and 44.

The fabric impregnating tank B is located in front of the pipe handhng apparatus and comprises a metal tank 59 supported above a furnace chamber 60.

A vertical mast 61 is secured in a concrete base 62 at the rear side and outside of the tank B. A horizontal supporting beam or arm'63 is pivotally mounted on the upper end of the mast 61 and extends over the tank 59. The forward end of the beam 63 terminates in a sleeve member 64 adapted to-rest on a horizontal support or bridge member 65 extending from side to side of the tank. The

bridge member 65 is curved over at least a part of itslength on an arc struck from the center of the mast 61 and is rovided witha centrally arranged slot 66 w ich follows the curvature of the bridge.

A suspension rod 67 is journaled in the sleeve 64 and is provided intermediate its ends with a flange 68 adapted to bear against the under side of the bridge member 65.- The upper end of-the rod 67 is threaded and provided with a nut 69 adapted to lock the rod against movement relative to the sleeve 64 and beam 63.

A rack 7 O is composed of spaced side plates 71 connected together by a connecting plate 72 and by the axle bolts 73 on which guideroller sleeves 74 are mounted. The suspension rod 67 is'adjustably secured to the connecting plate 72 so as to support the rack in vertically adjustable suspended position in the tank.

A plurality of upwardly and rearwardly projecting arms 75 are provided to su port axle rods 76 on which rolls of fabric 7, to

-low the level of the impregnating compound, then upwardly and over a feed-out roller 78,

journaled between the plates 71 and out'of the tank, to the pipe.

A pair of counter-weighted levers 79, having braking "shoe portions 80, are pivotally mounted on the side arms 75 and are adapted to bear against the axle rods 76 on which the rolls of fabric 77 are mounted so as to'retard the movement of said rolls of fabric and tension the fabric as it passes to the pipe.

The rack 70 is adapted to be adjusted to various 'angles relative 'to the pipe by loosening the nut 69 which will permit the arm 63 to be swung on the mast 61 and thereby moved longitudinallyof the bridge 65, also the rack itself may be swung horizontally relative to the bridge 65 and arm 63 by pivoting the suspension rod 67 in the sleeve 64 It will be understood that two separate on the rack 70 if desired.

While I have shown and described one specific embodiment of my invention, it will be understood that I do not wish to be limited thereto since various modifications may be made by those skilled in the art without'dellb rolls of fabric may be mounted side by side parting from the scope of my invention as I defined in the appended claims.

I claim- 1. In a machineifor wrapping pipes and the like, a housing, a shelf-like support rigidly mounted on and projecting from the forward vertical face of said housing, a vertically disposed feed-roller spindle journaled in said support, means for'releasably locking said spindle against rotation, a knurled feedroller journaled in the upper end of said spindle, vertically extending guideways on the upper portion of the forward vertical face of said housing, a supporting member slidably mounted in said guideways, a fluid pres- 2. In a machine for wrapping pipes and the like a housing, a shelf-like support rigidly mounted on and projecting from the forward vertical face of said housing, a ver-. tically disposed feed-roller spindle journaled in said support, means for releasably locking said spindle against rotation. a feed-roller journaled in the upper end of said spindle, vertically extending guideways on the-upper portion of the forward vertical face of said housing, a supporting member slidably mounted in said guideways, a fiuidpressure cylinder rigidly mounted on said housing and having its piston rod connected to sai supporting member so as to adjustably sup- 1 port said supporting member in said guideways, means for limiting the vertical movement of said supporting member, avertically disposed feed-roller spindle journaled in said supporting member, means for releasably locking said spindle against rotation, a feed-rollerjournaled in the lower end of said spindle, and means including ring gears on said spindles for simultaneously driving said rollers. a

3. In a machine for wrapping pipes and the like, a housing, a stationaryvsupport adjacent the lower end of said housing, a feedroller mounted on said support and fixed against vertical movement relative thereto, said roller being rotatable about a horizontal axis and rotatably adjustable about a vertical axis, a second support mounted for vertical sliding movement on said housing above said stationary support, a fluid pressure cylinder rigidly mounted on said housing and having its piston rod connected to said second named support for supporting and moving said support relative to said housing, means for limiting the vertical movement of said second named support, a vertically disposed feed-roller spindle journaled in said second named support, means for releasabcliy locking said spindle against rotation, a fee roller journaled in the lower endof said spindle, and means for simultaneously driving said feed-rollers.

4. In a machine for wrapping pipes and the like, a housing, a stationary support adjacent the lower end of said housing, a. feed-' roller mounted on said support and fixed against vertical movement relative thereto, said roller being rotatable about a horizontal axis and rotatably adjustable about a ver-- tical axis, a second support mounted for vertical sliding movement on said housing above said stationary support, means for supporting and moving said second named support relative to said housing, means for limiting the vertical movement of saidsecond named su port, a vertically disposed feed-roller spindle journaled insaid second-named support, means for releasably locking said spindle against rotation, a feed-roller journaled in the lower end of said spindle, and

means for simultaneously driving said feed rollers.

5. In a machine for wrapping pipes and the like, a housing, a stationary support ad-.

jacent the lower end of said housing, a vertically disposed feed-roller spindle journaled ing said spindle against rotation, a feed-rollerj ournaled in the upper end of said spindle, a second support mounted for vertical sliding movement on said housing above said stationary support, means for supporting and moving said second named support relative to said housing, means for limiting the vertical movement of said second named support, a vertically disposed feed-roller spindle journaled in said second named support,

in said support, means for releasably lockmeans for releasably locking said spindle against rotation, a feed-roller journaled in the lower end of said spindle, and means including ring gears on said spindles for simultaneously driving said rollers.

In testimony whereof, I have hereunto set my hand.

I-IRY B. LYNCH. 

